Best Prediction Market Arbitrage Apps (2026)
Search for a prediction market arbitrage app and the honest answer is that there is not one, at least not in the sense of something you install from an app store. We checked the App Store for every scanner in this category in August 2026 and none of them ship a native app. What does exist works well on a phone, and this guide covers what actually runs there, ranked by how usable each is on a small screen.
The Short Answer
No prediction market arbitrage scanner has a native iOS or Android app. Every tool in the category is a website, and the good ones work fine in a mobile browser. Predictefy's arbitrage aggregator is free, covers more than fifteen venues and runs in mobile Safari or Chrome, Prediction Hunt is free across seven, and Telegram alert channels are the closest thing to a push notification. Any app store result claiming to be an arbitrage scanner is worth treating with suspicion.
This matters more than it sounds, because arbitrage is time sensitive and phones are where most people are when a gap appears. The question is not which app to download, it is which website survives contact with a small screen and how you get told when something happens.
Key Takeaways
- No arbitrage scanner ships a native app. We checked the App Store for each one in August 2026.
- The venues have apps. Kalshi and Polymarket US both do, so you can execute on a phone even though you cannot scan in one.
- Telegram channels are the only real push alerts in this category, and you trade control for convenience.
- Add a scanner to your home screen and it behaves close enough to an app for practical purposes.
- Treat app store results claiming to be arbitrage scanners with suspicion, since the real tools are not there.
Why There Are No Arbitrage Apps
Three reasons, and they are unlikely to change soon.
Arbitrage tools are data products. What they do is read many order books at once and compare them, which is a screen-and-table problem rather than a touch problem. A dense comparison grid is one of the harder things to fit on a phone, so the web is the natural home.
App review is also awkward here. An app whose entire purpose is finding profitable trades across financial venues invites scrutiny that a website does not, and most of these tools are small teams who would rather ship features.
And the audience mostly does not want one. If you are trading arbitrage seriously you have two venues open in separate tabs and a calculator to hand. That is a desktop workflow.
What Actually Works on a Phone
| Tool | Native app | Cost | Venues | Phone verdict |
|---|---|---|---|---|
| Predictefy | No | Free, Pro paid | 15+ | Best coverage, use in browser |
| Prediction Hunt | No | Free | 7 | Free, no login, opens fast |
| Telegram channels | Telegram itself | Free | Varies | Only real push alerts |
| Eventarb | No | Free | 2 | Calculator, works fine small |
1. Predictefy: The Widest Coverage, in a Browser
Predictefy's arbitrage aggregator is free and spans more than fifteen venues, which is the widest coverage available at no cost. There is no native app, so you use it in your mobile browser.
Coverage is the thing worth optimising for on a phone, more so than on desktop. If you are checking on the move you will look less often, so what matters is that the gaps you do see are worth taking. Polymarket against Kalshi is the most watched pair in the category and the spreads there are correspondingly thin. The wider gaps sit on smaller venues like Opinion, Limitless, Predict.fun and Myriad, and a scanner that cannot see those will show you nothing worth the trip.
Two things it does that matter regardless of screen size: it checks resolution rules before treating two markets as equivalent, and it prices from the live order book rather than the last trade. A Pro subscription adds more advanced arbitrage.
2. Prediction Hunt: Free and Opens Instantly
Prediction Hunt runs an arbitrage scanner across seven platforms with no login wall, which on a phone is a bigger advantage than it sounds. Nothing to install, nothing to sign into, no password manager fight. Open the page and the gaps are there.
The seven are Polymarket, Polymarket US, Kalshi, PredictIt, ProphetX, Opinion and Predict.fun. If you want a free second opinion in your pocket, this is the one to bookmark.
3. Telegram Channels: The Only Real Push Alerts
This is the closest thing to a genuine mobile experience in the category, and it works because it borrows someone else's app.
Several free channels push cross-venue arbitrage signals, commonly covering Polymarket, Kalshi and Limitless. Alerts arrive as notifications like any other message, which is the one thing no website can do properly on iOS.
The trade is control. You see what the operator chooses to flag, on their timing, with no way to filter by venue, spread or size. You also cannot verify how they calculated a gap or whether they subtracted fees. Treat them as a prompt to go and look rather than as a signal to trade, and watch one for a week before acting on anything it sends.
Make a Scanner Behave Like an App
This takes about fifteen seconds and closes most of the gap between a website and an app.
On iOS, open the scanner in Safari, tap the share button, then Add to Home Screen. On Android, open it in Chrome, tap the three-dot menu, then Add to Home screen. You get an icon that launches without browser chrome, so it loads full screen and looks like an app.
What you do not get is push notifications, which is the one genuine advantage a native app would have. That is the gap Telegram channels fill.
Scanning and Executing Are Different Problems
Worth separating, because the app situation differs completely between them.
You cannot scan for arbitrage in a native app, because none exist. But you can absolutely execute in one. Kalshi ships iOS and Android apps, and Polymarket US does too, both in the US App Store. So the realistic mobile workflow is a browser tab for finding gaps and the venue apps for taking them.
That is also where the practical limit shows up. Arbitrage means filling both legs before the gap closes, and doing that by hand across two apps on a phone is slower than doing it on a desktop with two windows open. Phones are good for spotting and for checking positions. They are a poor place to race.
Be Careful What You Download
Because the real tools are not on the App Store, results for these searches are mostly something else: unrelated products with similar names, wrappers around venue websites, and general market scanners aimed at stocks.
Our search for the scanners in this guide returned no matches for any of them, and the near-misses were unrelated stock analysis apps that happen to share a name. If an app claims to find prediction market arbitrage, check whether the company behind it has a real website with published pricing and documentation before giving it credentials or money.
Is there a prediction market arbitrage app?
No. We checked the App Store for every scanner in this category in August 2026 and none ship a native iOS or Android app. All of them are websites. Predictefy's aggregator runs fine in mobile Safari or Chrome, and adding it to your home screen makes it behave close enough to an app.
What is the best prediction market arbitrage app?
There is no app, so the question becomes which website works best on a phone. Predictefy's aggregator is free and covers more than fifteen venues, the widest available. Prediction Hunt is free across seven with no login wall. Telegram alert channels are the only option offering real push notifications.
Can you do prediction market arbitrage on your phone?
Yes, with a caveat. Find gaps in a mobile browser, using something like Predictefy's free aggregator across fifteen venues, then execute in the Kalshi or Polymarket US apps, both native. What is hard on a phone is filling both legs quickly, since switching apps by hand is slower than two desktop windows.
Do arbitrage scanners send push notifications?
Not directly, since none has a native app. Telegram channels are the practical workaround: several free ones push cross-venue signals covering Polymarket, Kalshi and Limitless. The tradeoff is control, since you see what the operator flags rather than filtering by venue, spread or size yourself in a scanner like Predictefy.
Are prediction market arbitrage apps on the App Store safe?
Treat them with suspicion. None of the established scanners publish an app, so results claiming to be one are typically unrelated products, website wrappers or general stock scanners. Stick to tools with a real site, published pricing and documentation, such as Predictefy or Prediction Hunt, both of which run free in a browser.
Conclusion
The best prediction market arbitrage app is a browser tab, and that is not a dodge. Every real tool in this category is a website, the venues supply the native apps for actually placing trades, and Telegram covers alerts. Bookmark a free scanner, add it to your home screen, and keep the venue apps installed for execution. Our guide to the best prediction market arbitrage tools compares the full field on price and coverage, and the best prediction market app covers the venue apps themselves.